How should one treat one's wife according to the Prophet's sunnah?

The sunnah of the Prophet ﷺ shows gentle treatment, joking, showing appreciation, being patient with shortcomings and spending time together.
He raced Aisyah RA, ate with his wives, helped with housework and called his wives by affectionate names. He urged kindness to women, and forbade a husband from hating his wife for one shortcoming, since there is surely another trait he likes. Among the obligations too are not striking the face, not insulting, and providing food and clothing as he provides for himself. See Rights of husband & wife.